ROLANDO – A man with a small revolver walked in the back door of Mail Boxes Etc. and held up a clerk yesterday, police said.

The robbery occurred in an El Cajon Boulevard strip mall at College Avenue about 7 p.m. No one was injured.

San Diego police said the robber, a light-skinned black man in his 20s, about 5 feet 7 inches tall, wearing a blue bandanna and long denim shorts, entered through an unlocked back door and confronted a male employee at gunpoint. The clerk handed over about $500 and the robber left.